getting a code:PO430
Thread Starter
Instructor
Joined: Apr 2008
Posts: 247
Likes: 1
From: Ohio
getting a code:PO430
I own a 2000 coupe and Im getting a PO430 code which is (Catalyst system low efficiency bank 2) my question is which side is bank 2 and also would that involve the 02 sensors?. thanks for info you can give me where to start looking
Burning Brakes
Joined: Jul 2006
Posts: 763
Likes: 45
From: Long Grove IL
Bank 2 is the passenger side. It's possible to have to do with the oxygen sensor. Basically the code that means that the PCM believes that the catalytic converter is no longer operating within spec.
Le Mans Master
Joined: Sep 2014
Posts: 5,278
Likes: 539
From: Kelowna BC
Yep, could be the converter or the sensor. Is your passenger side cat discolored? A quick check is to switch sensors left to right (you have to unplug at both ends as each sensor adjusts fuel to air for its respective bank). If it follows the sensor, now P0431, the sensor is bad. If you still get P0430 pretty good chance the cat is done.
P.S., make sure you clear the codes after switching.
P.S., make sure you clear the codes after switching.
Last edited by grantv; May 23, 2015 at 03:10 PM.
